kafka的生产者API

kafkaAPI
	producer
	{
		//配置生产者属性（指定多个参数）
		Properties prop = new Properties();

		//参数配置
		//kafka节点的地址
		prop.put("bootstrap.servers","bigdata:9092");
		//发送消息是否等待应答
		prop.put("acks","all");
		//配置发送消息失败重试
		prop.put("retries","0");
		//配置批量处理消息大小
		prop.put("batch.size","10241");
		//配置批量处理数据延迟
		prop.put("linger.ms","5");
		//配置内存缓冲大小
		prop.put("buffer.memory","12341235");
		//消息在发送前必须序列化
		prop.put("key.serializer","org.apache.kafka.common.serialization.StringSerializer");
		prop.put("value.serializer","org.apache.kafka.common.serialization.StringSerializer");

		//2、实例化producer
		KafkaProducer<String, String> producer = new KafkaProducer<String, String>(prop);

		//3、发送消息
		for(int i = 0; i < 99; i++) {
			producer.send(new ProducerRecord<String, String>("test", i));
		}

		//4、释放资源
		producer.close();
	}

	producer接口回调
	{
		//配置生产者属性（指定多个参数）
		Properties prop = new Properties();

		//参数配置
		//kafka节点的地址
		prop.put("bootstrap.servers","bigdata:9092");
		//发送消息是否等待应答
		prop.put("acks","all");
		//配置发送消息失败重试
		prop.put("retries","0");
		//配置批量处理消息大小
		prop.put("batch.size","10241");
		//配置批量处理数据延迟
		prop.put("linger.ms","5");
		//配置内存缓冲大小
		prop.put("buffer.memory","12341235");
		//消息在发送前必须序列化
		prop.put("key.serializer","org.apache.kafka.common.serialization.StringSerializer");
		prop.put("value.serializer","org.apache.kafka.common.serialization.StringSerializer");

		//2、实例化producer
		KafkaProducer<String, String> producer = new KafkaProducer<String, String>(prop);

		//3、发送消息
		for(int i = 0; i < 99; i++) {
			producer.send(new ProducerRecord<String, String>("test", i)，new CallBack(){
				public void onCompletion(RecordMetadata metadata, Exception exception) {
					//如果metadata不为null，拿到当前的数据偏移量与分区
					if(metadata != null) {
						Sout(metadata.topic() + "------" + metadata.offset() + "------" + metadata.partition());
					}
				}
			});
		}

		//4、关闭资源
		producer.close();
	}